A former housekeeper who worked at Justin Bieber’s Southern California mansion has told how she fears he will end up dead like Michael Jackson.

In a bombshell tell-all interview, Tatiana Voziouk described how she eye-witnessed prescription drugs, marijuana and the dangerous cocktails of codeine-based cough syrup and soda — known as “sizzurp” — inside the pop star’s Calabasas, Calif., mansion.

“The drugs and hangers-on are turning Justin into a zombie,” the woman, who began working for Bieber in August 2012, told Britain’s Sunday People.

“I’m terrified he’ll become the next Michael Jackson. If he doesn’t act now I will hear one day that he has passed away. It is heartbreaking.

Of pot use, the ex-aide said: “They give users marijuana in the form of ­cookies, lollipops and candies. These products were always in the house.

“I was always picking up joint butts and stubs from the ­kitchen, lounge and pool area where they had been thrown.”

Tatiana, who no longer works for Bieber and is intending on filing an unfair dismissal claim, said she tried to ask the “Baby” hit-maker’s mom Pattie Mallette and manager Scooter Braun to help, but her pleas fell on deaf ears.

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